{"document":{"acknowledgments":[{"urls":["https://kb.cert.org/vuls/id/400865#acknowledgements"]}],"category":"CERT/CC Vulnerability Note","csaf_version":"2.0","notes":[{"category":"summary","text":"Cisco's Trust Anchor module (TAm) can be bypassed through manipulating the bitstream of the Field Programmable Gate Array (FPGA). This component handles access control to a hardware component within Cisco's Secure Boot implementations, which affects multiple products that support this functionality. An authenticated, local attacker could bypass the Secure Boot and make persistent changes to the root trust for software integrity. Additionally, Cisco's IOS XE web UI improperly sanitizes user-input, and could allow an authenticated, remote attack to execute commands. An authenticated, remote attacker could execute commands as root on the vulnerable device.","title":"Summary"},{"category":"legal_disclaimer","text":"THIS DOCUMENT IS PROVIDED ON AN 'AS IS' BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. ","title":"Legal Disclaimer"},{"category":"other","text":"CERT/CC Vulnerability Note is a limited advisory. It primarily identifies vendors impacted by the advisory and not specific products. We only support \"known_affected\" and \"known_not_affected\" status. Please consult the vendor's statements and advisory URL if provided by the vendor for more details ","title":"Limitations of Advisory"}],"publisher":{"category":"coordinator","contact_details":"Email: cert@cert.org, Phone: +1412 268 5800","issuing_authority":"CERT/CC under DHS/CISA https://www.cisa.gov/cybersecurity also see https://kb.cert.org/ ","name":"CERT/CC","namespace":"https://kb.cert.org/"},"references":[{"url":"https://certcc.github.io/certcc_disclosure_policy","summary":"CERT/CC vulnerability disclosure policy"},{"summary":"CERT/CC document released","category":"self","url":"https://kb.cert.org/vuls/id/400865"}],"title":"Cisco Trust Anchor module (TAm) improperly checks code and Cisco IOS XE web UI does not sanitize user input","tracking":{"current_release_date":"2019-05-16T17:12:21+00:00","generator":{"engine":{"name":"VINCE","version":"3.0.35"}},"id":"VU#400865","initial_release_date":"2019-05-13 00:00:00+00:00","revision_history":[{"date":"2019-05-16T17:12:21+00:00","number":"1.20190516171221.39","summary":"Released on 2019-05-16T17:12:21+00:00"}],"status":"final","version":"1.20190516171221.39"}},"vulnerabilities":[{"notes":[{"category":"general","text":"No vulnerabilities have been defined at this time for this report"}]}]}